Lock having an inner and an cuter handle rotatable independently of each other



May 18 1926. 1,585,105

v QVEVRDICK LOCK mwme 1m INN R AND AN OUTER HANDLE ROTATABLE INDEPENDENTLY OF EACH OTHER Filed Feb. 13. 1924 3 She'ets-Sheet. 1

INVENTOR.

L MHz/m Guard/bk ATTORNEY.

May 18 1926. I 1,585,105

w. OVERDICK LOCK HAVING AN INNER AND AN OUTER HANDLE ROTATABLE INDEPENDENTLY OF EACH OTHER Filed Feb. 13, 1924 5 Sheets-Sheet 2 ATTORNEY 1,585,105 W. OVERDICK LOCK HAVING AN INNER AND AN OUTER HANDLE ROTATABLE INDEPENDENTLY OF EACH OTHER Filed Feb. 15. 1924 3 Sheets-Sheet 5 ATTORNEY Patented May 18, 1926.

lfitglli .VIILEELM OVERDIGK, O33 BROOKLYN, NEW YORK.

LGGK'HAVING AN INNER AND AN GUTER HANDLE ROTATABLE INDEPENDENTLY OF EACH Applicationfiled February "purpose of makingunnecessaryfthe use of separate locking devices equipped with such indicators. Locks of this kind, as'rnade hitherto, are of relatively complicated construction which oflsets the advantage ohtainied by the elimination of separate locking device; furthermore, doors equipped with these locks cannot beshut by mere pushing-or slamming likedoors with ordinarylocksgand it 13 necessary to fully depress "the handle to lock the door from either side.

In the present lock these-detects are elim inated. Its construction is simple and permits the use of a'latch bolt having the: usual inclined surface, and'which will be pushed back and snap into place wheir the door: is pushed or: slammed shut.

Unlike some of the locks of this'type, the present lock has only one latch bolt which moves lengthwise in the usual manner. The moving of an inner 'arin by meansot a handle against a hookrigidly'secured to theilatch bolt will, in" every case, cause. the latter to move back, while the outer arm will move the latch bolt back in a similar a manner only in case a second hookpivoted I as seen from' the outside, with. .the outer:

cover plate removedythe lock' being in;.the normal position.

Figure 2 is a similar View showing the latch bolt moved back by the inner" arm.

" Figure 3*is' another view similarv to Figindicating ornnn.

3, 1924. Serial No. 692/556.

ures 1 and 2,-showing the latch bolt moved to its locking position, by means of theinner handle.

Figure 4: is a vertical section on line l.4 ofF-igure 1.

Figure 5 is a horizontal section on line 5 ofjFigurel.

igure .6 is a partial .end view of the casing.

vFigure 7' is apa'rtial-view of the locking plate. 7

Figure 8 is a view similar toFlgure 1 showing the position of the parts-at the moment when the pivoted hook is released.

Figures-9 and 10 are partial side elevations showingthe indicating .devicein both positions.

The housing or the lock comprises the usual two parallel side,v\'alls 1,.2-and an end 'wall connecting the forward edges of 1') plates 1 and'2. Thelatch bolt lot the lock has at its outer end an inclined surface 5 and is provided with reinforcing plates .6 for the purpose of increasing the width of the V inclined surface. The reinforcing plate 6 is guided in a slot in plate, 2. The inner portion of the: latch bolt which is flat has a bottom shoulder 7 and a rearward extension 8 of half the thickness of the wide portion. ofthe latch bolt and extend- .ing along the outer wall 2. i Portion Shas a-lateral offset at 9 and to the rear thereof a downward projection,forming. a hook 10. The hook l0 is-provided :at its, lowerend with a-guideflange 11 extending, through a slot in the inner wall 1 of the hou jand Hillel serving to guide the latch b end.

A lug 1-3 is provided, at the top of: the latch bolt l which may project a, certain distance through opening 1% in end wall 8, said opening being located near the inner wall or the housing and forming an e:-iten- -sion of opening v1.5 for the latch bolt. A hook 16 is pi oted tov the outer side or lug "13,011 a horizontal pin17, the shank 18, of the hook 16 extending rearwardly along the outer wall 2 above the portion 8 and being provided at its end with ahookflS -'set inwardly. I

Arms 20 .21 ondrsks 22 23 are ada ited 1 0 SWlH in re an o icon an( i) t a tl 1 l1 *s 10 l U respectively. Disks 22, 23, have each a, short stud integral therewith, winch extends extending in front of hook :10 which is oil'- square end portions of which are inserted into a square hole 2k in each oi the disk 22. 23.

Each disk has a rearward projection 27 against which bear springs 28, 29 respectively which hold the projections 27 from below against a stop 30 when the lock is at rest.

The inner disk 22 has on its front portion a short lifting arm 31 on which rests the lower end of the lifting slide 82 which is guided by a longitudinal projection 33 engaging in a vertical slot 31 in the inner wall 1, and which extends upwardly between this wall and the horizontal lock portions 8 and 18 located above each other, and which has an otl'set 35 toward the rear of the housing.

it the lower end of this offset the slide 32 is provided with a vertically narrow litting lug 36 which projects into the space between the hook portions 8 and 18. Between the lug and a reinforced upper portion 8. of the slide 82 is formed a recess in which the hook 16 can swing freely. The lower shoulder of portion 37 is engaged at one end by a suspended pawl 88 pivoted on studs of its hub 39 in opposite holes of walls 1 and 2 of the housing. A spring 10 urges pawl 38 against the portion 37 of slide 32. The slide itself is urged down by a spring 11.

hen the outer handle 25 is depressed and the disk 23, which is connected to the handle, is thereby turned and the arm 21 swung back, the latter will engage hook 10 and the latch bolt will be withdrawn against the action of spring 12 engaging the latch bolt at its outer end. 1V hen the handle is released, the latch bolt will move back to its former position. During these operations the lifting slide 82 and the pivoted hook 16 have not been moved out of the lower position shown in Figure 1 which is the position at rest.

lVhen the inner disk 22 is rotated by means of the inner handle, arm 20 will en gage the rigid hook 10 of the latch bolt and cause the latch bolt to move back; simultaneously the lug 81 will lift the slide 32 as shown in Figure 2. The lug 36 will cause the pivoted hook 16 to swing upward and the pawl 38, which previously had been swung toward the front end of the lock, will snap over the edge of portion 37.

After the.do0r has been shut and the inner handle is released, the end portion of the latch bolt 4 will enter the rectangular opening 13 in the locking plate 4% of the door frame. The locking plate as. however, has no opening in alignment with the lug 13 and the advance of the latch bolt is limited by the engagement of lug 13 with locking plate In case the inner handle is rOiCLiSGtl while the door is open, the latch bolt will project somewhat further beyond the end plate :3, there being nothing in the path 01'' lug 1 This will cause a release projection at the upper edge of hook 16 to force pawl 38 out of its locking position, as shown in Figure 8, whereby the slide 32 is released and allowed to drop down with the hook 16 under the action of the spring.

As may easily be seen the door cannot be opened by means of the outer handle after it has been shut and the latch bolt been pulled back by means of the inner handle until the inner handle has again been operated. In order to indicate this locked condition to persons inside and outside the door, an indicator plate 17 is provided on each side, extending behind cover plates -11) and having a vertical movement. Each plate 1-7 is provided with a horizontal extension 1-8 secured in a rectangular opening l9 in portion 37 of slide 32 and extending through suitable slots in the door and the walls 1 and 2 of the housing. The indicator plates thus move up and down in unison with the slide 32 and alternately display the words open and vacant through a suitable opening in cover plates 46.

To permit, in certain exceptional cases, opening of the door from the outside after it has been locked from the inside, the hub portion 39 of the pawl 38 may be provided with a square hole so that the pawl can he swung out of its locking position by 1110:131 of a square key inserted into this hole. Paul 38 is preferably provided with an arm limiting the rotation of the pawl when the latter is turned by means of a key.

The inclined surface at the forward end of the latch bolt is provided on the outer side of the bolt, as required Ior doors opening inwardly. On doors opening outwardly this inclined surface must, of course, TiH't inwardly. The inclined surface permits of shutting the door by merely pushing or slamming it, without requiring the dcprc sion of a handle. When the door has been shut in this manner, either from the inside or the outside, the outer handle is not rendered inoperative. This will only be the case when the inner handle has been depressed.

lVhile I have herein described and illustrated one practical embodiment of my present improvements, it is nevertheless, to be understood that the essential features thereof might also be incorporated in various other alternative structures, and I therefore, reserve the privilege of resorting to all such legitimate changes in the form, construction and relative arrangement of the several elements as may be fairly considered within the spirit and scope of the appended claims.

Claims:

1. In a lock, inner and outer independently rotatable handles, a lock b lt having a rearw rd extension, a part movably connected at one oi its ends with the bolt, memiiXed to each or" the handles and co operating respectively wi h said bolt exte sion and with said part whereby, upon the rotation of one of said handles the lock bolt is retracted, a'slidable member cooperating with said part, and said bolt retract ing member on the latter handle having part cooperating with said slidable member when the bolt is retracted to actuate the same and move said movable part on the latch bolt out of the path or" movement of the member on the other loch handle.

2. in a lock, inner and outer independently rotatable handles, a loch bolt, a part pivotally mounted at one oi its ends upon the loci; bolt and having its other end normally positioned in parallel relation with the belt at one side thereof, an actuating arm fixed to each handle member and adapted to cooperate with the bolt with said part respectively to retract the bolt, amember slidably mounted in the lock case and supporting saidpivoted pi in n il position, and said handle having the arm engaging the bolt leing further provioed with means for actuating said slidable member as the bolt is retracted to move said pivoted part out of the path of movement of the actuating arm on the other handle memher. 7

3. In a lock, inner and outer independently rotatable handles, a lock bolt, a part pivotally mounted at one or its ends upon the lock Jolt and having its other end normally positioned in parallel relation with the belt at one side thereof, an actuating arm lined to each handle member and adapted to coo mate with the bolt and with said part respectively to retract the bolt, a member sli-dably mounted in the lock case and supporting said pivoted part in its normal position, and said handle having the arm engaging the bolt being further providedwith ans for actuating said slidable member as the bolt is retracted to move said pivoted part out of the path of movement of the actuating arm on the other h lie 2. and means for releasably retaining the sli-dable member in the latter position.

i. In a lock, inner and outer independently rotatablehandles, a lock bolt, a part pivotally mounted at one of its ends upon the loci: bolt and having its other end normally positioned in parallel relation with the bolt at one side thereof, an actuating arm lined to each handle member and adapted to cooperate with the b0 t and with said partrespectively to retract the bolt, a member slidably mounted in the lo i; case and supporting said pivoted part in its normal position, and said handle having the arm engaging the, bolt being further provided with means for actuating said slidable member as the bolt is retracted to move said pivoted part out of the path or movement of the actuating arm on the other handle member, and means for releasably retaining the slid:

'le member in the latter position, said 'oted part having a shoulder adapted to ge the latter means and release the slidmember in the return of the loci: bolt 'ts normal position.

o. In a lock, inner and outer independently rotatable handles, a look belt, a part pivota ly monnted at one of its ends upon the lock bolt and having its other end normally positioned in parallel relation w h the bolt one side thereof, an actuating arm tired to each handle member and adapt-d to cooperate with the bolt and with said part respectively to retract the bolt, a member ed in the lock case and suppi ote part in its normal posiha le laving the arm engaging the bolt being i'urther provided with the boltis 0 move part out at the path oft movement of the arm on the other handle member, a 1' lea for releasably retaining the slit e member in the latter position, said loci; lJOliJ having a lug adapted to engage a strike plate andlimit the projection of the bolt from the lock housing when the door is closed. and said pivoted part having a shoulder adapted to engage said slide holding means and release the slide in the further project: in of the'bolt to its normal position after the door opener.

6. In a lock, inner and outer independently rotatable handles, a lock bolt, a part pivotally mounted at one of its ends upon the lock bolt and having its other end normally positioned in parallel relation with the belt at one side thereof, an actuating arm fined to each handle member and adapted to cooperate with the boltand with said part respectively to retract the bolt, a member slidably mounted in the lock case and sup portingaid pivoted in its normal posi tion, and saio handle having the arm the bolt being further provided with means for t- ,tuating said slidable member the bolt is retracted to move said pivoted part out of the path of movement of the actuating arm on the other handle member, a pivoted pawl mounted in the lock case and cooperating with said slide to retain the sam in the latter position, and said pivoted parton the lock bolt having means to engage said pawl and release the slide in the movement of the lock bolt to its fully projected position.

l" mall positioned in parallel relation member slid-ably mounted in the lock case and supporting said pivoted part in its normal position, and said handle having the arm engaging the bolt being further provided with means for actuating said slidable memher as the bolt is retracted to move said pivoted part out of the path of movement of the actuating arm on the other handle member, saic bolt having a lug thereon to engage a strike plate when the door is closed limiting the projecting movement of the belt, a pivoted pawl mounted in the lock case and cooperating with said slide to retain the same in the latter position, and said pivoted part on the lock bolt having means to engage said pawl and release the slide in the moveient ot the loci: bolt to its fully projected position, said pawl having means whereby the same may be manually operated independentlv ot' the lock bolt to release the slide.

8. la a lock, inner and outer independently rotatable handles, a lock bolt, a part pivotally mounted at one of its ends upon the lock bolt and having its other end normally positioned in parallel relation with the bolt atone side thereof, an actuating arm fixed to each handle member and adapted to cooperate with the bolt and with said part respectively to retract the bolt, a member slidably mounted in the lock ease and supporting said pivoted part in its normal position, and said handle having the arm engaging the bolt being further provided with means for actuating said slidable member as the bolt is retracted to move said pivoted part out of the path of movement of the actuating arm on the other handle member, said bolt having a lug thereon to engage a strike plate when the door is closed and limiting the projecting movement of the bolt, :1 pivoted pawl mounted in the loci: case and cooperating with said slide to retain the same in the latter position, and said pivoted part on the lock bolt having means to engage said pawl and release the slide in the movement of the lock bolt to its fully projected position, said pawl having means whereby the same may be manually operated independently of the lock bolt to release the slide, and indicating means carried by and movable with said slide and visible from the opposite sides of the lock case.

lVILl-IELM OVERDICK. 

